//package demo02.filter;
//
//
//import javax.servlet.*;
//import javax.servlet.annotation.WebFilter;
//import java.io.IOException;
//
//@WebFilter(filterName = "MyFilter",urlPatterns = "/register.do")
//public class MyFilter implements Filter {
//    @Override
//    public void init(FilterConfig filterConfig) throws ServletException {
//    }
//    @Override
//    public void doFilter(ServletRequest servletRequest,
//                         ServletResponse servletResponse,
//                         FilterChain filterChain)
//            throws IOException, ServletException {
//        servletResponse.setContentType("text/html;charset=UTF-8");
//        String username = servletRequest.getParameter("username");
//        String password = servletRequest.getParameter("password");
//        //servletResponse.getWriter().write("第一级过滤-MyFilter");
//        //servletResponse.getWriter().write(username);
//       //filterChain.doFilter(servletRequest,servletResponse);
//        if(password.length()>=8){
//            filterChain.doFilter(servletRequest,servletResponse);
//        }else {
//            servletResponse.getWriter().write("密码设定不符合要求--密码长度小于8");
//        }
//    }
//
//    @Override
//    public void destroy() {
//
//    }
//
//}
